What are the reasons that randomized controlled studies are higher than cohort studies in the evidence-based pyramid? Select all that apply.
A) Randomized controlled studies are unfiltered information.
B) Randomized controlled studies involve two groups.
C) Randomized controlled studies use a control group.
D) Randomized controlled studies have a treatment as part of the design.

Question

Quizplus · Accepted Answer

Both RCTs and cohort studies are considered primary studies, or unfiltered information, and involve two groups.

What Are the Reasons That Randomized Controlled Studies Are Higher